1371639696 has 160 divisors (see below), whose sum is σ = 4305438720. Its totient is φ = 367331328.

The previous prime is 1371639677. The next prime is 1371639727. The reversal of 1371639696 is 6969361731.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2507295 + ... + 2507841.

It is an arithmetic number, because the mean of its divisors is an integer number (26908992).

Almost surely, 2^1371639696 is an apocalyptic number.

1371639696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1371639696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2152719360).

1371639696 is an abundant number, since it is smaller than the sum of its proper divisors (2933799024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1371639696 is a wasteful number, since it uses less digits than its factorization.

1371639696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021 (or 1015 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 51.

The square root of 1371639696 is about 37035.6543887103. The cubic root of 1371639696 is about 1111.0834579725.

The spelling of 1371639696 in words is "one billion, three hundred seventy-one million, six hundred thirty-nine thousand, six hundred ninety-six".